alaska12345
Civil/Environmental
- Dec 8, 2011
- 9
Hi Abaqus users,
I am trying to make a model of really simply steel sheet. But i want to give pre-stresses before. I give U in-put file to see it. So in the middle of this sheet i give the pre-stresses with the value of +355MPa. In the rest parts i gave the value of -50.71MPa (I use Set Cells). So the whole element should have been in equilibrium. And then the model is objected by a tensile pressure force with 160MPa. And now tthe questions:
1. How can i at the beginning check if the whole model is in the equilibrium? I heard that there is any energy metod to check it, but i dont know which, where and how to use it...
2. Why the results of this job show that the stresses in the middle are decreasing? In the middle of element the pre-stresses are tensile. Addictionaly the force ist tensile too.
Thank U in advance.
I am trying to make a model of really simply steel sheet. But i want to give pre-stresses before. I give U in-put file to see it. So in the middle of this sheet i give the pre-stresses with the value of +355MPa. In the rest parts i gave the value of -50.71MPa (I use Set Cells). So the whole element should have been in equilibrium. And then the model is objected by a tensile pressure force with 160MPa. And now tthe questions:
1. How can i at the beginning check if the whole model is in the equilibrium? I heard that there is any energy metod to check it, but i dont know which, where and how to use it...
2. Why the results of this job show that the stresses in the middle are decreasing? In the middle of element the pre-stresses are tensile. Addictionaly the force ist tensile too.
Thank U in advance.